{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do blockchain API nodes ensure the security of data?","a":"Using secure communication protocols: API  nodes usually adopt the HTTPS protocol for communication, encrypting data to protect its security during transmission."}]}],"pr":"e945421d1253bd19be8606f59a3ec01c8738966a833bfe66947e24be30a2f2b2"}